diff options
| author | Jerome Marchand <jmarchan@redhat.com> | 2015-11-06 05:47:29 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 06:34:48 +0300 |
| commit | 3608de0787e51d3d826656e105524b48ade7b16f (patch) | |
| tree | 57acacb92f952f5633a4cc31bf92712f818d2a61 | |
| parent | a5f65109026b35b654b94fdcd26a971185a53adc (diff) | |
| download | linux-3608de0787e51d3d826656e105524b48ade7b16f.tar.xz | |
mm/memcontrol.c: fix order calculation in try_charge()
Since commit 6539cc053869 ("mm: memcontrol: fold mem_cgroup_do_charge()"),
the order to pass to mem_cgroup_oom() is calculated by passing the
number of pages to get_order() instead of the expected size in bytes.
AFAICT, it only affects the value displayed in the oom warning message.
This patch fix this.
Michal said:
: We haven't noticed that just because the OOM is enabled only for page
: faults of order-0 (single page) and get_order work just fine. Thanks for
: noticing this. If we ever start triggering OOM on different orders this
: would be broken.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memcontrol.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b952abef6ff0..a1c05ff5892d 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2094,7 +2094,8 @@ retry: mem_cgroup_events(mem_over_limit, MEMCG_OOM, 1); - mem_cgroup_oom(mem_over_limit, gfp_mask, get_order(nr_pages)); + mem_cgroup_oom(mem_over_limit, gfp_mask, + get_order(nr_pages * PAGE_SIZE)); nomem: if (!(gfp_mask & __GFP_NOFAIL)) return -ENOMEM; |